Skip to main content

Table 3 Newcastle-Ottawa Scale for quality assessment

From: Association of three micro-RNA gene polymorphisms with the risk of cervical cancer: a meta-analysis and systematic review

Author (year)

Selection

Comparability

Exposure

Total score

Case definition

Case representation

Selection of controls

Definition of contrast

Control for factor

Determination of exposure

Same exposure method

No response rates

Zhou (2011) [16]

☆

☆

 

☆

☆☆

☆

☆

☆

8

Yue (2011) [17]

☆

☆

 

☆

☆☆

☆

☆

☆

8

Ma (2015) [18]

☆

☆

 

☆

☆

☆

☆

☆

7

Ding (2016) [19]

☆

☆

☆

☆

☆☆

☆

☆

☆

9

Wang (2016) [20]

☆

☆

 

☆

☆☆

☆

☆

☆

8

Yan (2019) [21]

☆

☆

 

☆

☆

☆

☆

☆

7

Wang (2019) [22]

☆

☆

 

☆

☆

☆

☆

☆

7

Thakur (2019) [23]

☆

☆

☆

☆

☆☆

☆

☆

☆

9

  1. ☆The article scored one point in the project
  2. ☆☆The article scored two points in the project